Hair colorant preparation

ABSTRACT

The invention relates to a hair colorant comprised of a flowable, aqueous preparation of oxidation colorant intermediate products (A) and a flowable, aqueous oxidation agent preparation (B) which are mixed in a weight ratio A:B=1:2 to 2:1 to produce a gel-forming coloring batch immediately before applying on the hair. As supporting components in the oxidation colorant preparation, the hair colorant comprises 3.0 to 15 wt. % of a saturated or unsaturated, linear or branched alcohol with 8 to 36 C-atoms, 0.1 to 20 wt. % of a low-molecular water-soluble alcohol, 0.1 to 15 wt. % of a liquid fatty acid with 16 to 22 C-atoms in the form of a water-soluble soap, 0.1 to 20 wt. % of an addition product of 1 to 5 mole ethylene oxide on a linear fatty alcohol with 8 to 22 C-atoms and/or 0.1 to 15 wt. % of an optional alkoxylated amine. The oxidation agent preparation (B) preferably comprises 3 to 12 wt. % hydrogen peroxide, 0.1 to 5 wt. % of a water-soluble, synthetic tenside and 1 to 5 wt. % of a dispersed acrylic acid polymerizate or copolymerizate and/or methacrylic acid polymerizate or copolymerizate.

The invention relates to hair colorant preparations consisting of aflowable aqueous preparation of oxidation dye intermediates (A) and aflowable, aqueous oxidizing agent preparation (B), which are mixeddirectly prior to application to the hair to give a gel-like coloringmixture and which, following the mixing, are in the form of apseudoplastic, flowable gel.

The carriers used for oxidation hair colorants are predominantly O/Wcreams or gels. The preparations of oxidation dye intermediates should,following the addition of the oxidizing agent, in most cases an aqueoushydrogen peroxide preparation, have a creamy or viscous gel-likeconsistency which permits easy application to and distribution on thehair, e.g. using a brush, and a certain adhesion to the hair, withoutthe colorant running off the hair and wetting the scalp or face.

Oxidation dye preparations of the gel type usually have, as carriers,soaps in a mixture with water and lower alcohols or glycols. Aftermixing with aqueous oxidizing agent solutions, such preparations giveviscous, gel-like coloring mixtures. A disadvantage is the formation oflime soaps when the colorant is rinsed out using hard water. A furtherdisadvantage is that if the soap content is high the dye preparationbecomes too viscous, but if the soap content is lower, the coloringmixture does not achieve the required viscosity. Also, the co-use of asynthetic surfactant which has a lime soap dispersing effect disturbsthe formation of the flowable gel structure of the coloring mixture.

DE 40 22 848 A1 discloses a hair colorant preparation which aims toavoid the abovementioned disadvantages. The carrier system disclosedtherein comprises soap, polyols, synthetic surfactants, and additionproducts of ethylene oxide with linear fatty alcohols and/or linearfatty alkylamines. However, upon application, this carrier system alsoexhibits disadvantages with regard to the conditioning action, and theviscosities are also relatively high.

The object of the present invention was, therefore, to find a carriersystem suitable for the oxidizing colorants which, as well as havinggood conditioning properties, either does not have the abovementionedproblems or exhibits them only to a significantly reduced extent.

It has been found that hair colorants consisting of a flowable, aqueouspreparation of oxidation dye intermediates (A) and a flowable, aqueousoxidizing agent preparation (B), which are mixed together directly priorto application to the hair in the weight ratio A:B=1:2 to 2:1 to give agel-like coloring mixture, have particularly good application propertieswhen the preparation of oxidation dye intermediates (A) comprises, ascarrier components,

6.0 to 15% by wt. of a saturated or unsaturated, linear or branchedalcohol having 8 to 36 carbon atoms, 0.1 to 20% by wt. of a lowmolecular weight water-soluble alcohol, 0.1 to 15% by wt. of a liquidfatty acid having 16 to 22 carbon atoms in the form of a water-solublesoap, 0.1 to 20% by wt. of an addition product of from 1 to 5 mol ofethylene oxide with a linear fatty alcohol having 8 to 22 carbon atomsand/or 0.1 to 15% by wt. of an amine according to the formula (I),

in which R¹ is a saturated or unsaturated alkyl radical having 8 to 22carbon atoms, R² and R³ independently of one another are hydrogen or anacyl group R⁴CO, in which, in turn, R⁴ is a C₁-C₂₁-alkyl orC₂-C₂₁-alkenyl group. n is 2 or 3, x and y independently of one anotherare a number from 0 to 5, with the proviso that the sum x + y = 2 to 6.

In a preferred embodiment it is also possible for

0.1 to 20% by wt. of a polyol having 2 to 6 carbon atoms and/or 0.5 to10% by wt. of a water-soluble, synthetic surfactant and/or 0.1 to 10% bywt. of a compound of the formula (II) R⁵—(OC₂H₄)x—A—(C₂H₄O)y—R⁶ (II) inwhich R⁵ and R⁶ are linear alkyl or alkenyl groups having 12 to 22carbon atoms, x and y = 0 or 1, and A is an oxygen atom or an

group

to be present.

The saturated or unsaturated, linear or branched alcohols having 8 to 36carbon atoms to be used according to the invention are preferably fattyalcohols and/or Guerbet alcohols.

The term fatty alcohols means primary aliphatic alcohols of the formula(III)

R⁷OH  (III)

in which R⁷ is an aliphatic, linear or branched hydrocarbon radicalhaving 8 to 22 carbon atoms, which is saturated or can contain up to 3double bonds.

Typical examples are 2-ethylhexyl alcohol, capric alcohol, laurylalcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, palmoleylalcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidylalcohol, petroselinyl alcohol, linoleyl alcohol, linolenyl alcohol,elaeostearyl alcohol, arachidyl alcohol, gadoleyl alcohol, behenylalcohol, erucyl alcohol and brassidyl alcohol, and the technical-grademixtures thereof which are produced, for example, during thehigh-pressure hydrogenation of technical-grade methyl esters based onfats and oils or aldehydes from the Roelen oxo synthesis, and as monomerfraction during the dimerization of unsaturated fatty alcohols.

Preference is given to technical-grade fatty alcohol mixtures having 12to 18 carbon atoms, such as, for example, coconut, palm, palm kernel ortallow fatty alcohol, in particular coconut and/or tallow fatty alcohol.

The term Guerbet alcohols means alcohols prepared by alkalinecondensation of alcohols to give higher molecular weight, branchedisoalcohols. This reaction was first published by Guerbet in 1899. In1952, Machemer described essential steps of the reaction (AngewandteChemie 64 (1952) 213 20): As well as the dehydrogenation to give theketone, in which hydrogen is cleaved off, and the aldol condensation, animportant step in the course of the reaction is the crotonization, inwhich water is cleaved off. The reaction of the prior art is carried outat atmospheric pressure and a reaction temperature of from 240 to 260°C. The resulting branched alcohols are referred to as Guerbet alcohols.Since then, the prior art has disclosed a large number of otherprocesses, according to which Guerbet alcohols can be obtained.

For the purposes of the present invention, the term lower molecularweight alcohols means water-miscible alcohols having 1 to 5 carbonatoms. These are preferably ethanol, propanol and/or isopropanol.

The fatty acids suitable for the formation of soap are preferably liquidor low-melting unsaturated linear C₁₆-C₂₂-fatty acids, such aspalmitoleic acid, oleic acid, elaidic acid, petroselic acid,petroselaidic acid, gadoleic acid, erucic acid, brassidic acid, andmixtures of these fatty acids with one another and optionally with minorproportions of saturated linear fatty acids having 12 to 22 carbonatoms. Other fatty acids likewise suitable are branched fatty acidshaving 16 to 22 carbon atoms, e.g. 2-hexyldecanoic acid, isostearic acidand 2-octyldodecanoic acid.

To convert the fatty acids into water-soluble soaps, alkali metalhydroxides and alkali metal carbonates, ammonia, mono-, di- andtrialkanolamines having 2 to 4 carbon atoms in the alkanol group, andalkaline amino acids, such as, for example, arginine, ornithine, lysineand/or histidine, are suitable.

Suitable as polyols having 2 to 6 carbon atoms are, for example,ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, glycerol,erythritol, trimethylolpropane, diethylene glycol and dipropyleneglycol. 1,2-propylene glycol is preferred.

Suitable water-soluble synthetic surfactants are preferably anionic,amphoteric, zwitterionic and nonionic surfactants with good solubilityin water and a good lime-soap dispersibility. Such surfactants generallyhave a lipophilic linear alkyl or acyl group having 12 to 18 carbonatoms and a strongly dissociated ionic group or a nonionic polyethergroup which confers solubility in water. Suitable examples are sulfurichalf-ester salts of linear fatty alcohols having 12 to 18 carbon atomsor of fatty alcohol polyglycol ethers having 12 to 16 carbon atoms inthe alkyl group and 1 to 10 glycol ether groups. Other suitable anionicsurfactants are, for example, linear alkanesulfonates andα-olefinsulfonates having 12 to 18 carbon atoms. Suitable nonionogenicsurfactants are, for example, the addition products of from 7 to 30 molof ethylene oxide with linear fatty alcohols having 12 to 18 carbonatoms, with fatty acids having 12 to 18 carbon atoms, and with fattyacid monoglycerides and with fatty acid sorbitan monoesters. Preferably,suitable nonionogenic surfactants are the fatty alkylamine oxides and,in particular, the fatty alkyl glycosides, preferably fatty alkylglucosides. The fatty alkyl group can have 12 to 18 carbon atoms in saidproducts. For the purposes of the present invention, particularpreference is also given to amphoteric surfactants, such as, forexample, N-fatty alkyldimethylglycine or N-fatty alkylaminopropionicacid and/or zwitterionic surfactants, e.g. N-fatty alkyldimethylammoniumglycinate or N-fatty acylaminopropyldimethyl glycinate.

Preference is also given to cationic surfactants, such as quaternaryammonium compounds (QAC), in particular quaternized trialkylammoniumcompounds containing alkyl radicals of chain length from C8 to C22.

It has been found that the addition of further nonionogenic surfactantsof limited solubility in water achieves a thickening of the oxidationcolorant preparation and, in particular, of the coloring mixtureprepared directly prior to application.

Suitable addition products of 1 to 5 mol of ethylene oxide with linearfatty alcohol having 12 to 22 carbon atoms are all adducts obtainable bythe known industrial oxyethylation processes. Preference is given to theaddition products which contain only a little free fatty alcohol andhave a narrowed homolog distribution (so-called “narrow rangeethoxylates”), as are accessible, for example, according to the processdescribed in DE 38 43 713 A1.

Suitable addition products of from 1 to 4 mol of ethylene oxide with alinear fatty alkylamine having 12 to 22 carbon atoms are all adductsobtainable by known industrial processes, which are also availablecommercially. The addition product of 2 mol of ethylene oxide with aC₁₂-C₁₈-cocoalkylamine is particularly suitable.

Suitable compounds of the formula

R⁵—(OC₂H₄)_(x)—A—(C₂H₄O)_(y)—R⁶  (II)

in which A is an oxygen atom, are dialkyl ethers having 12 to 18 carbonatoms in the alkyl groups. Such products are known in the literature.Even better suited are the products of the formula II in which x or y orboth=1. Such dialkyl oxyethyl ethers can be prepared by esterificationprocesses known in the literature from fatty alcohols and fatty alkyloxyethanols. The products of the formula II in which A is an

group can be obtained, for example, from triethanolamine by O-alkylationwith 2 mol of a sulfuric half-ester salt of a C₁₂-C₂₂-fatty alcoholaccording to the process for the preparation of ether amines describedin DE 35 04 242.

Particularly preferred compounds of the formula II are, for example,dicetylstearyl ether, dicetylstearyl dioxyethyl ether andN,N-bis(2-cetylstearyl-oxyethyl)aminoethanol.

While the use of addition products of 1 to 5 mol of ethylene oxide witha linear fatty alcohol achieves the required thickening in most cases byvirtue of this component alone, in the case of the use of additionproducts of 1 to 4 mol of ethylene oxide with a linear fatty alkylamine,it may be advantageous to use these in combination with 1 to 10% byweight of a compound of the formula II. In this connection, efforts aremade for the preparation of oxidation dye intermediates (A) to have aviscosity of at most 1 Pas (20° C.), and the coloring mixture whichforms by mixing (A) with the oxidizing agent preparation (B) to have aviscosity of at least 10 Pas (20° C.) (viscosity measurement using aBrookfield rotational viscometer, model RTV, spindle 4, 4 rpm).

Moreover, the preparation of oxidation dye intermediates (A) of coursecontains the oxidation dye intermediates which form the dye in thepresence of oxidizing agents, and optionally also direct dyes. Suitableoxidation dye intermediates are, for example, the known color bases ordeveloper compounds and known modifiers or coupler compounds. Theoxidation dyes form as a result of oxidative coupling of one or moredeveloper components with one another or with one or more couplercomponents in the presence of an oxidizing agent. The developercomponents used are usually primary aromatic amines having a furtherfree or substituted hydroxyl or amino group in the para or orthoposition, diaminopyridine derivatives, heterocyclic hydrazones,4-aminopyrazolone derivatives, and 2,4,5,6-tetraaminopyrimidine andderivatives thereof.

Typical examples are p-phenylenediamine, p-toluylene-diamine,p-aminophenol, 1-(β-hydroxyethyl)-2,5-diamino-benzene,N,N-bis(2-hydroxyethyl)-p-phenylenediamine,2-(2,5-diaminophenoxy)ethanol, 4,5-diamino-1-(2-hydroxyethyl)pyrazole,1-phenyl-3-carboxyamido-4-amino-5-pyrazolone, 4-amino-3-methylphenol,2-hydroxymethyl-4-aminophenol, 2-aminomethyl-4-aminophenol,2,4,5,6-tetraaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine,4-hydroxy-2,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine,2-dimethylamino-4,5,6-triaminopyrimidine,2-hydroxyethylaminomethyl-4-aminophenol,1,3-bis[N-(2-hydroxyethyl)-N-(4-aminophenyl)amino]-2-propanol, and4,4-diaminodiphenylamine. For the purposes of the present invention,preferred developer components are1,3-bis[N-(2-hydroxyethyl)-N-(4-aminophenyl)amino]-2-propanol,6-chloro-2-aminophenol,1,10-bis(2,5-diaminophenyl)-1,4,7,10-tetraoxadecane; particularpreference is given to using 6-hydroxy-2,4,5-triaminopyrimidine,2-(2,5-diaminophenyl)ethanol, 2,6-dichloro-4-aminophenol,3-methyl-4-aminophenol, 2,4,5,6-tetraaminopyrimidine,2-aminomethyl-4-aminophenol and 2-hydroxymethyl-4-aminophenol.

The coupler components usually used are m-phenylenediamine derivatives,naphthols, resorcinol and resorcinol derivatives, pyrazolones andm-aminophenols. Suitable coupler substances are, in particular1-naphthol, 1,5-, 2,7- and 1,7-dihydroxynaphthalene,5-amino-2-methylphenol, m-aminophenol, resorcinol, resorcinol monomethylether, m-phenylenediamine, 1-phenyl-3-methyl-5-pyrazolone,2,4-dichloro-3-aminophenol, 1,3-bis(2,4-diaminophenoxy)propane,2-chlororesorcinol, 4-chlororesorcinol, 2-chloro-6-methyl-3-aminophenol,2-amino-3-hydroxypyridine, 2-methylresorcinol, 5-methylresorcinol,2,5-dimethylresorcinol, 2,6-dihydroxypyridine, 2,6-diaminopyridine,2,6-dihydroxy-3,4-dimethylpyridine, 2,6-dihydroxy-4-methylpyridine,3-amino-2-methylamino-6-methoxypyridine,2,6-bis(2-hydroxyethylamino)toluene, 2,4-diaminophenoxyethanol and2-amino-4-hydroxyethylaminoanisole. For the purposes of the presentinvention, preference is given to using the following couplersubstances: 2,4-diaminophenoxyethanol, 2-methylresorcinol,1,3-bis(2,4-diaminophenoxy)propane, 2,7-dihydroxynaphthalene,α-naphthol, 2,6-dihydroxy-3,4-dimethylpyridine,1,5-dihydroxynaphthalene, 5-amino-2-methylphenol,2-amino-4-(β-hydroxyethylamino)anisole, 3-amino-2-chloro-6-methylphenoland 5-amino-4-chloro-2-methylphenol. Particular preference is given to2,4-diaminophenoxyethanol, 1,3-bis(2,4-diaminophenoxy)propane,2-methylresorcinol, 2,7-dihydroxynaphthalene and2,6-dihydroxy-3,4-dimethylpyridine.

Moreover, the preparation of oxidation dye intermediates (A) can containsuitable additives for stabilizing the dye intermediates; these arecomplexing agents, e.g. ethylenediaminotetraacetic acid,nitrilotriacetic acid, 1-hydroxyethane-1,1-diphosphonic acid or otherorganodiphosphonic acids in the form of their alkali metal salts,antioxidants, such as, for example, sodium sulfite, sodium bisulfite,hydroquinone or salts of thioglycolic acid or ascorbic acid, buffersalts, such as, for example, ammonium sulfate, ammonium carbonate,ammonium citrate, and ammonia or an alkanolamine to set a pH of from 8to 10.

In a preferred embodiment, the preparations of oxidation dyeintermediates (A) according to the invention comprise direct dyes, whichinclude customary direct dyes, e.g. from the group ofnitrophenylenediamines, nitroaminophenols, azo dyes, anthraquinones orindophenols, such as, for example, compounds known under theinternational names or trade names HC Yellow 2, HC Yellow 4, HC Yellow6, Basic Yellow 57, Disperse Orange 3, HC Red 3, HC Red BN, Basic Red76, HC Blue 2, Disperse Blue 3, Basic Blue 99, HC Violet 1, DisperseViolet 1, Disperse Violet 4, Disperse Black 9, Basic Brown 16 and BasicBrown 17, and 4-amino-2-nitrodiphenylamine-2′-carboxylic acid, e6-nitro-1,2,3,4-tetrahydroquinoxaline, hydroxyethyl-2-nitrotoluidine,picramic acid, 2-amino-6-chloro-4-nitrophenol and4-N-ethyl-1,4-bis(2′-hydroxyethylamino)-2-nitrobenzene hydrochloride inan amount of from 0.01 to 20% by weight, based on the total oxidationhair colorant. 4-Amino-2-nitrodiphenylamine-2′-carboxylic acid,6-nitro-1,2,3,4-tetrahydroquinoxaline and HC Red BN are particularlypreferred direct dyes according to the invention.

In a preferred embodiment, is also possible for indoles and/or indolinesto be present. For the purposes of the present invention, particularpreference is given to 6-hydroxyindole, N-methyl-6-hydroxyindole,N-ethyl-6-hydroxyindole, N-propyl-6-hydroxyindole,N-butyl-6-hydroxyindole, 4-hydroxyindole, N-methyl-4-hydroxyindole,N-ethyl-4-hydroxyindole, N-propyl-4-hydroxyindole,N-butyl-4-hydroxyindole, 5,6-dihydroxyindole,N-methyl-5,6-dihydroxyindole, N-ethyl-5,6-dihydroxyindole,N-propyl-5,6-dihydroxyindole, N-butyl-5,6-dihydroxyindole, and5,6-dihydroxyindoline, N-methyl-5,6-dihydroxyindoline,N-ethyl-5,6-dihydroxyindoline, N-propyl-5,6-dihydroxyindoline andN-butyl-5,6-dihydroxyindoline.

Furthermore, the preparations according to the invention can alsocomprise naturally occurring dyes, such as, for example, henna red,henna neutral, henna black, camomile blossom, sandalwood, black tea,buckthorn bark, sage, logwood, madder root, catechu, sedre and alkannaroot.

In addition, polymers, for example zwitterionic and/or nonionic polmers,such as silicone oils, preferably cationic polymers such as Polymer JR400, Merquat 100, Gafquat 734, Gafquat 755, Mirapol A15, hexadimethrinechloride (condensation of N,N,N′,N′-tetramethyl-hexamethylenediamine andtrimethylene chloride) and polyquaternium-34, may be present.

Particular preference is given to preparations of oxidation dyeintermediates (A) which comprise proteins and/or protein derivatives ofvegetable or animal origin, such as, for example, pea, soya, wheat andalmond protein hydrolyzate or acacia protein, and collagen and keratinhydrolyzate.

Preferred thickeners according to the invention are xanthan gum, agaragar, linear and crosslinked polyacrylates, nonionogenic and anioniccellulose derivatives.

Furthermore, hair cosmetic auxiliaries may be present, in particularbisabolol, plant extracts, vitamins such as, preferably, niacin amide,tocopherol, vitamin A, biotin and vitamin D.

The oxidizing agent preparation (B) particularly preferably comprises

3 to 12% by wt. of hydrogen peroxide 0.1 to 5% by wt. of awater-soluble, synthetic surfactant and 1 to 5% by wt. of a dispersedacrylic acid and/or methacrylic acid polymer or copolymer

in the aqueous carrier, in addition to the stabilizing auxiliariescustomary in such preparations. In the simplest case, however, it canalso consist of water alone, so that the oxidation is brought about bythe atmospheric oxygen. The prior art also discloses a number ofcatalysts, such as, for example, salts of copper, manganese, iron,cerium, lanthanum, vanadium, molybdenum and tungsten, which can be addedto the reaction mixture in the case of oxidation by atmospheric oxygen.As is known from the prior art, there are also other oxidation options,for example using iodide/periodate and/or iodate or in combination ofiodide with hydrogen peroxide, and also enzymatically. For the purposesof the present invention, all oxidation methods known from theliterature are suitable, meaning that the oxidizing agent preparation(B) can comprise the corresponding substances.

The water-soluble synthetic surfactants which can be used in theoxidizing agent preparation (B) are the anionic, amphoteric,zwitterionic and nonionic surfactants, or mixtures thereof, which havealready been given for the preparation of oxidation dye intermediates(A). Preference is given to using anionic surfactants, e.g. sulfurichalf-ester salts of linear fatty alcohols having 12 to 18 carbon atomsor of fatty alcohol polyglycol ethers having 12 to 16 carbon atoms inthe alkyl group and 1 to 10 glycol ether groups in the form of theiralkali metal, magnesium, ammonium or alkanolammonium salts.

The oxidizing agent preparation (B) further preferably comprisescomplexing agents and buffer salts to set a pH of from 2 to 5. In thisweakly acidic medium, the acrylic acid and/or methacrylic acid polymerdispersions remain thinly liquid and stable. Upon mixing with thealkaline preparation of oxidation dye intermediates (A), which comprisesammonia and buffer salts to set a pH of from 8 to 10, the pH of themixture increases and the carboxyl groups of the polymer or copolymerare converted into the salt form. During this operation, the polymersbegin to dissolve in the aqueous medium and to increase the viscosity ofthe solution.

A particularly favorable feature for the viscosity buildup following themixing of the preparation of oxidation dye intermediates (A) and theoxidizing agent preparation (B) is the content of dispersed acrylic acidand/or methacrylic acid polymer or copolymer in (B). Such dispersions ofcopolymers, e.g. comprising at least 10% by weight of acrylic acid loweralkyl ester, 25 to 70% by weight of methacrylic acid and optionally upto 40% by weight of a further comonomer, are described, for example, inGB 870 994. DE 11 64 095 discloses mixed polymers comprising 50 to 75%by weight of ethyl acrylate, 25 to 35% by weight of acrylic acid and 0to 25% by weight of other comonomers. Suitable dispersions of this typeare available commercially, e.g. under the trade name Latekoll® D(BASF). The copolymers comprising 50 to 60% by weight of ethyl acrylate,30 to 40% by weight of methacrylic acid and 5 to 15% by weight ofacrylic acid, crosslinked with ethylene glycol dimethacrylate, which aredescribed in DE 34 45 549 are particularly suitable.

The examples below serve to illustrate the subject-matter of theinvention in more detail:

EXAMPLES

The following preparations of oxidation dye intermediates (A) weretested (all data in % by weight):

TABLE 1 Formulations Raw material 1 2 3 4 5 6 Oleic acid 6.75 6.75 6.756.75 6.75 6.75 Lorol ® (technical-grade)¹ 6.75 6.75 6.75 6.75 6.75 —Texapon ® NSW² 3.95 3.95 3.95 3.95 3.95 3.95 Plantasol ® W 20³ 3.0 3.03.0 3.0 3.0 3.0 Dehydol ® LS-2⁴ — 13.5 6.75 — — 13.5 Cocamine 2 EO — — —6.75 — — Lowenol ® S 216⁵ — — — — 6.75 — 1,2-Propylene glycol 6.75 6.756.75 6.75 6.75 6.75 Isopropyl alcohol 15.0 15.0 15.0 15.0 15.0 15.0Monoethanolamine 5.0 5.0 5.0 5.0 5.0 5.0 Arginine 1.0 1.0 1.0 1.0 1.01.0 Na metabisulfite 0.2 0.2 0.2 0.2 0.2 0.2 Ascorbic acid 0.2 0.2 0.20.2 0.2 0.2 Perfume oil 0.5 0.5 0.5 0.5 0.5 0.5 Resorcinol 0.06 0.060.06 0.06 0.06 0.06 p-Aminophenol hydrochloride 0.06 0.06 0.06 0.06 0.060.06 p-Toluylenediamine sulfate 0.05 0.05 0.05 0.05 0.05 0.05 Water ad100 ¹C12/C18-fatty alcohol (100% by weight of active substance)²C12/C14-fatty alcohol 2EO sulfate, sodium salt (25% by weight of activesubstance in aqueous solution) ³Wheat protein hydrolyzate (20% by weightof active substance in aqueous solution) ⁴C12/C14-fatty alcohol 2EO(100% by weight of active substance) ⁵Bis(2-hydroxyethyl)soyaalkylaminedioleate (97% by weight of active substance)

The preparations of oxidation dye intermediates (A) listed in Table 1,formulations 1 to 5, were then mixed with the oxidizing agentpreparation (B), formulation 7, listed below (Table 2) in the ratio 4:5.The viscosity of the resulting gels was then determined.

TABLE 2 Formulation 7 Raw material amount in % by wt. Hydrogen peroxide5.0 Texapon ® NSW² 2.0 Acrysol ® 33⁶ 5.5 Turpinal ® SL⁷ 1.5 Ammonia, 25%strength 0.65 by wt. aqueous solution Water ad 100 ⁶Acrylate copolymer(30% by weight of active substance) ⁷Acetophosphonic acid (60% by weightof active substance)

The viscosity was measured at 20° C. using a Brookfield rotationalviscometer, model RTV, spindle 4, 4 revolutions per minute. The resultsare given in Table 3:

TABLE 3 Formulation Viscosity [mPas] 1 + 7 1975 2 + 7 18000 3 + 7 112504 + 7 10500 5 + 7 12500

To determine the conditioning properties of the formulations accordingto the invention, formulations 2 and 6 were compared. For this, the twoformulations were mixed with formulation 7 as described above, and then4 g of each mixture was applied in each case to a hair swatch (2 g) and,after a contact time of 30 minutes, the combability was evaluatedsubjectively (using a fine-toothed, serrated hard rubber comb). Theresults are given in Table 4.

TABLE 4 Formulation Combability* Hair swatch before coloring 5 Followingtreatment with 2 + 7 2 Following treatment with 6 + 7 4 *The combabilitywas assessed subjectively using a grade scale from 1 - very good to 5 =poor.

What is claimed is:
 1. A hair colorant comprising a flowable preparationof oxidation dye intermediates (A) and a flowable, aqueous oxidizingagent preparation (B), which are mixed together directly prior toapplication to the hair in the weight ratio A:B=1:2 to 2:1 to give acoloring mixture with a flowable gel structure, wherein the preparationof oxidation dye intermediates (A) has a viscosity of 1 Pas or less at20° C. and comprises, as carrier components, (i) 6.0% to 15% by weightof a saturated or unsaturated, linear or branched alcohol having 8 To 36carbon atoms, (ii) 0.1% to 20% by weight of a low molecular weightwater-soluble monoalcohol, (iii) 0.1% to 15% by weight of a liquid fattyacid having 16 to 22 carbon atoms in the form of 4 water-soluble soap,and (iv)
 0. 1% to 20% by weight of a nonionic addition product of 1 to 5moles of ethylene oxide with a linear fatty alcohol having 8 to 22carbon atoms; and wherein The viscosity of the preparation of oxidationdye intermediates (A) and aqueous oxidizing agent preparation (B) aftercombination is at least 10 Pas at 20°, wherein the viscosities aremeasured with an RTV Brookfield viscometer, spindle number 4 at 4 rpm.2. The hair colorant of claim 1, wherein the preparation of oxidationdye intermediates (A) comprises technical-grade fatty alcohols having 12to 18 carbon atoms.
 3. The hair colorant of claim 1, which furthercomprises 0.1 to 15% by wt. of an amine according to the formula (I),

 in which R¹ is a saturated or unsaturated alkyl radical having 8 to 22carbon atoms, R² and R³ independently of one another are hydrogen or anacyl group R⁴CO, in which, in turn, R⁴ is a C₁-C₂₁-alkyl orC₂-C₂₁-alkenyl group. n is 2 or 3, x and y are a number from 0 to 5,with the proviso that the sum x+y=2 to 6].
 4. The hair colorant of claim1, wherein the preparation of oxidation dye intermediates (A) comprisesa polyol.
 5. The hair colorant of claim 1, wherein the preparation ofoxidation dye intermediates (A) comprises a water-soluble syntheticsurfactant selected from the group consisting of cationic, amphoteric,and zwitterionic surfactants and fatty alkyl glycosides.
 6. The haircolorant of claim 1, wherein the preparation of oxidation dyeintermediates (A) comprises dicetylstearyl ether, dicetylstearyloxyethyl ether, dicetylstearyl dioxyethyl ether,N,N-bis(2-cetylstearyl-oxyethyl)aminoethanol, or a mixture thereof. 7.The hair colorant of claim 1, wherein the preparation of oxidation dyeintermediates (A) comprises a developer substance selected from thegroup consisting of1,3-bis(N-(2-hydroxyethyl)-N-(4-aminophenyl)amino)-2-propanol,6-chloro-2-aminophenol,1,10-bis(2,5-diaminophenyl)-1,4,7,10-tetraoxadecane,6-hydroxy-2,4,5-triaminopyrimidine, 2-(2,5-diaminophenyl)-ethanol,2,6-dichloro-4-aminophenol, 3-methyl-4-aminophenol,2,4,5,6-tetraaminopyrimidine, 2-aminomethyl-4-aminophenol, and2-hydroxymethyl-4-aminophenol.
 8. The hair colorant of claim 1, whereinthe preparation of oxidation dye intermediates (A) comprises a couplersubstance selected from the group consisting of2,4-diaminophenoxyethanol, 2-methylresorcinol,1,3-bis(2,4-diaminophenoxy)propane, 2,7-dihydroxynaphthalene,α-naphthol, 2,6-dihydroxy-3,4-dimethylpyridine,1,5-dihydroxynaphthalene, 5-amino-2-methylphenol,2-amino-4-(β-hydroxyethylamino)-anisole,3-amino-2-chloro-6-methylphenol, and 5-amino-4-chloro-2-methylphenol. 9.The hair colorant of claim 1, wherein the preparation of oxidation dyeintermediates (A) comprises a protein or protein hydrolyzate selectedfrom the group consisting of pea, soya and almond protein hydroxyzates,acacia protein, and collagen and keratin hydrolyzate.
 10. The haircolorant of claim 1, wherein the preparation of oxidation dyeintermediates (A) comprises a cationic polymer chosen from the groupformed by Polymer JR 400, Merquat 100, Gafquat 734, Gafquat 755, MirapolA15, hexadimethrine chloride, and polyquaternium
 34. 11. The haircolorant of claim 1, wherein the oxidizing agent preparation (B)comprises 3 to 12% by wt. of hydrogen peroxide 0.1 to 5% by wt. of awater-soluble, synthetic surfactant, and 1 to 5% by wt. of a dispersedacrylic acid or methacrylic acid polymer or copolymer or a mixturethereof.
 12. The hair colorant of claim 2, wherein the technical-gradefatty alcohols are coconut, palm, palm kernel, or tallow alcohols. 13.The hair colorant of claim 1, wherein the saturated or unsaturated,linear or branched alcohol comprises 12 to 36 carbon atoms.
 14. A haircolorant comprising a flow able preparation of oxidation dyeintermediates (A) and a flowable, aqueous oxidizing agent preparation(B), which are mixed together directly prior to application to the hairin the weight ratio A:B=1:2 to 2:1 to give a coloring mixture with aflowable gel structure, wherein the preparation of oxidation dyeintermediates (A) comprises, as carrier components (i) 6.0% to 150% byweight of a saturated or unsaturated, linear or branched alcohol having8 to 36 carbon atoms, (ii) 0.1% to 20% by weight of a low molecularweight water-soluble monoalcohol, (iii) 0.1% to 15% by weight of aliquid fatty acid having 16 to 22 carbon atoms in the form of awater-soluble soap, and (iv) 0.1% to 20% by weight of a nonionicaddition product of 1 to 5 moles of ethylene oxide with a linear fattyalcohol having 8 to 22 carbon atoms; wherein the aqueous oxidizing agentpreparation (B) comprises water, hydrogen peroxide and at least onedispersed acrylic acid polymer or copolymer, or methacrylic polymer orcopolymer or a mixture thereof; and wherein the viscosity of thepreparation of oxidation dye intermediates (A) and the aqueous oxidizingagent preparation (B) after combination is at least 10 Pas at 20° C.,wherein the viscosity is measured with an RTV Brookfield viscometer,spindle number 4 at 4 rpm.
 15. The hair colorant of claim 14 wherein thepreparation of oxidation dye intermediates (A) has a viscosity of 1 Pasor less.
 16. The hair colorant of claim 15 further comprising from 0.1%to 15% by weight of an amine according to the formula (I),

in which R¹ is a saturated or unsaturated alkyl radical having 8 to 22carbon atoms, R² and R³, independently of one another, are hydrogen oran acyl group R⁴CO, where R⁴ is a C₁-C₂₁-alkyl or C₂-C₂₁-alkenyl group,n is 2 or 3, and x and y are a number from 0 to 5, with the proviso thatthe sum x+y=2 to
 6. 17. The hair colorant of claim 14, wherein thepreparation of oxidation dye intermediates (A) her comprises a polyol.18. The hair colorant of claim 14, wherein the oxidizing agentpreparation (B) comprises: from 3% to 12% by weight of the hydrogenperoxide from 0.1% to 5% by weight of a water-soluble, syntheticsurfactant, and from 1% to 5% by weight of the dispersed acrylic acid ormethacrylic acid polymer or copolymer or a mixture thereof.